Assistant Professor Alex Burgers, University of Michigan
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Abstract: Neutral atom arrays are a rapidly developing platform for quantum science. Rydberg-mediated entanglement between atoms has led to numerous advances in quantum computing and quantum simulation using this platform. An emerging frontier within this field is the use of alkaline earth-like atoms (AEAs) such as ytterbium (Yb). The rich internal structure of these atoms affords numerous unique capabilities, including a nuclear spin J = 0 electronic state of fermionic isotopes for robust quantum information encoding, efficient control of Rydberg operations using transitions in the Yb+ ion core, and optical transitions in the telecom band from the 3P0 metastable state. These unique features are demonstrated in recent results utilizing transitions in the Yb+ ion core to control excitations to the Rydberg state, which can be used for efficient local control [1], and the realization of a universal set of quantum gate operations using qubits encoded in the nuclear spin of 171Yb [2]. Additionally, telecom optical transitions from the long-lived 3P0 state enable integration of these systems with low-loss fiber networks and silicon nanophotonics for exploring hybrid quantum systems and quantum communication networks. In this talk I will describe the experimental platform for trapping and manipulating Yb atoms in optical tweezer arrays, the recent results discussed above, and future capabilities of this system.
[1] AP Burgers et al, PRX Quantum 3, 020326 (2022)
[2] S Ma*, AP Burgers* et al, Phys Rev X 12, 021028 (2022)
In-person only. Refreshments served in PAS 218 at 2:45PM